Walking-beam bearing



sept. 9, 1930. R. R 'BLQSS ET A.. 1,175,628

` WALKING Bgm BEARING Filed April 10. 1928 a.: 1l f Il l IN VEN TOR. AWC/Mrd E 5/055 BY ff/mer 5. M70/6r .Q//Ves/er 5 [fea/71er. o E

Patented Sept. 9, 1.930

UNITED STATES PATENTr oFFl'cEpfv RICHARD R. BLOSS, ELMER B. MAURER, AND SYITESTER B. CREAMER, 0F COLUMBUS, OHIO, ASSIGNORS TO THE INTERNATIONAL DEIIR'IRIJKA @a EQUIPMENT COMPANY, AOl

COLUMBUS, OHIO, A CORPORATION OF OHIO WALKING-BEAM BEARING y Application filed April 10,

Our invention relates to walking beam bearings and has particular reference to walking beam bearings whereina means is 'provided for eiiicient and continuous lubrication of the lbearings in which the trunnions of the walking beam of an oil well drilling or pumping mechanism oscillates.

Most walking beam bearings, inuse at the present time, have the disadvantage of requiring the frequent application of lubricant by a workman. This is due to the fact that the only means for lubricating such bearings is by way of an oil hole in the cap of the bearing into which the lubricant must be frequently placed and allowed to seep down over the trunnions of the walking beam saddle. No means has hitherto been provided for preventing the lubricant from seeping out of the "ends of the bearings. This has resulted in the friction between the bearings and the trunnions being increased and the life of the bearing thereby materially shortened.

The disadvantage of having a bearing in which no means is provided for continuous lubrication over a relatively long period of time has been made more noticeable for the reason that the walking beam bearings are usually mounted at a height,v above the ground, of approximately twice or three times the average mans height. This has `required frequent climbing on the part ofthe workman and has made the bearing Vso inaccessible as to cause the workman to freqnently neglect to lubricate the bearing. In

5 seme instances, a platform and stairway have been provided in order to permit the workman to safely lubricate the walking beam bearing but this has the disadvantage of being more or less expensive. Y

One of the objects of our invention is to so construct the walking beam bearing that it Y will be efliciently and continuously lubricated over a relatively long period of tin e. Other objects of our invention may be seen in the 5 following detailed description.

TheV preferred embodiment of our invention may be seen in the accompanying` draw-` ings wherein similar characters of reference designate corresponding parts and wherein:

5o Figure 1 is a sectional view of awalking beam bearing constructed in accordance with our invention. i

Figure 2 is a sectionalview of the walking beam bearingv taken the line 2*-2 of Figure l. Y p

Figure 3 is a perspective view of one `of the side irons which make up the walking beam bearing. y i

lWithreference to Figures l and 2 of the drawings,` we have shown a walking beam saddlel lhavin'gthe trunnions 2 mounted on opposite sides thereof. A walking beam 3 is rigidlyattached to the walking beam saddle l asis Shown in Figure l. y v f The respective trunnions 2 of the walking beam saddle l are supported-in side irons l whichV are Vindependently and rigidly attached to the Samson post 5.

Each; of the side irons lis made up of two pieces, namely, the base portion which forms the bearing support for the trunn'ion 2 of the walking beam saddle 1 and a cap 6 which forms the top part of the walking beam bearing .and serves to prevent displacement of the trunnions 2 and also to prevent water and Vforeign substances from accumulating `in the bearing. The'bearing support and the cap are lined with the usualBabbitt metal 7.

The lower or base portions of each walking beam bearing fl are so constructed as to the inside edge of each bearing cap 6 is pro-r.

vided with an extension l1 which serves to prevent water or foreign substance from havl ing access to the oil reservoir 9 at this location. A means for draining each oil reservoir 8 is provided by the removableplug l2.`

Referring to Figure 1 ofthe drawings, it willlbe seen that the trunnions 2 of the saddle v l have an inverted depression 13 therein.

will be seen in Figure l wherein it will be noted that each oil reservoir 8 is higher than each oil reservoir 9. It will be understood that, when oil is put in each oil reservoir 8, the oil will be forced through between the trunnion and the surface of the bearing until the level of the oil in the reservoir 9 of a side iron is the same as that in the reservoir S thereof. lo lilith reference to the preceding description and the drawings attached hereto, it Will be apparent that we have retained the necessary 'flexibility and adjustment of our walking beam bearing by providing a bearing which consists of two units. It will also be apparent that we have eliminated all of the disadvanta geous features in connection with the lubrieating of these parts.

Various changes may be made in the details of our invention without departing from the scope thereof.

Having thus described our invention, what we claim is:

l. A walking beam center support coinprising a walking beam saddle .having trunnions on the opposing sides thereof, spaced side irons having base portions which form a bearing support for said trunnions, cap members forming the tops of such bearings, the bearing support for each trunnion having an oil reservoir at each end, two of said oil reservoirs being positioned at a higher level than the others, and shields for the oil reservoirs at the higher level.`

Q. A Walking beam center support comprising a walking` beam saddle having trunnions on the opposing sides thereof, spaced side irons having base portions which form a bearing support for said trunnions, cap members forming the tops of such bearings, the bearing support for each trunnion having an oil. reservoir at each end, two of said oil reservoirs being positioned at a. higher level than the others, and shields for the oil reservoirs at the higher level, said shields being disposed on said cap members.

3. A walking beam center support comprising a walking beam saddle having trunnions on the opposing sides thereof, spaced side irons having base portions which form a bearing support for said trunnions, cap meir-.b forming' the tops of such bearings, ie bearing support for each trunnion having :in oil reservoir at each end, two of said oil reservoirs being positioned at a higher level iban the others, and shields for the oil reservoirs at the higher level, said shields being formed integrally with said cap members.

.in testimony whereof they hereto affix their U0 signatures.

RICHARD B.. BLOSS. ELMER B. MAURER. SYLVESTER B. CREAMER. 

